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Finding the Fourth Proportional to 19,328.98, 26,672.59 and 10,829.90

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Solution

The fourth proportional to 19,328.98, 26,672.59 and 10,829.90 is: 14,944.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328.98 : 26,672.59 = 10,829.90 : x
  2. Step 2: Convert to fraction form
    19,328.98/26,672.59 = 10,829.90/x
  3. Step 3: Cross multiply
    19,328.98x = 26,672.59 × 10,829.90
  4. Step 4: Simplify right side
    19,328.98x = 288,861,562.66
  5. Step 5: Solve for x
    x = 288,861,562.66/19,328.98
  6. Step 6: Final answer
    x = 14,944.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.